#include<stdio.h>
#include<string.h>
int main()
{
    struct student
    {
        long num;
        char name[20];
        char sex;
        float score;
    };
struct student stu_1={10101,"Li Lin",'M',89.5};
struct student *p;
p=&stu_1;
printf("%d,%s,%c,%f\n",stu_1.num,stu_1.name,stu_1.sex,stu_1.score);
printf("%d,%s,%c,%f\n",(*p).num,(*p).name,stu_1.sex,(*p).score); 
return 0;
}
